In this June 15, 2015, photo, a rescued dog walks down the back stairs of the Good Newz Rehab Center, the former home of NFL football quarterback Michael Vick's Bad Newz kennel in Smithfield, Va. (AP Photo/Steve Helber)

This photo from Friday June 5, 2015, shows a dog who was abandoned on Polandâs highest mountain, Rysy, in the Tatra mountains, possibly taken there to die, and discovered on Friday. By chance a group of climbers found him, and using ropes and chains successfully brought the frightened dog down from the craggy and icy mountain peak in an operation that took 10 hours. The frightened dog didnât always want to cooperate, making the operation more difficult.(AP Photo/Dariusz Slaby) POLAND OUT

In this June 15, 2015, photo, Gus looks at a visitor from his room at the Good Newz Rehab Center, the former home of NFL football quarterback Michael Vick's Bad Newz kennel, in Smithfield, Va. (AP Photo/Steve Helber)

IMAGE DISTRIBUTED FOR HUMANE SOCIETY INTERNATIONAL - In this image released on Thursday, March 19, 2015, 57 dogs rescued by Humane Society International and Change for Animals Foundation from a dog meat farm in Hongseong, South Korea, arrive in San Francisco. HSI worked with the farmer to remove the dogs from miserable conditions and close the doors of his facility for good. As part of the plan, HSI secured an agreement with him to stop raising dogs for food and move permanently to growing crops as a more humane way to make a living. HSI flew the dogs to San Francisco to be evaluated and treated for medical issues at the San Francisco SPCA. Some of the dogs will be transferred to additional HSI Emergency Placement Partners, includingâEast Bay SPCA, Marin Humane Society and the Sacramento SPCA. All the dogs will be found loving, permanent homes. In this image, two dogs settle in to their new digs at the San Francisco SPCA after their long trip form South Korea. (Sammy Dallal/AP Images for Humane Society International)

IMAGE DISTRIBUTED FOR HUMANE SOCIETY INTERNATIONAL - In this image released on Thursday, March 19, 2015, 57 dogs rescued by Humane Society International and Change for Animals Foundation from a dog meat farm in Hongseong, South Korea, arrive in San Francisco. HSI worked with the farmer to remove the dogs from miserable conditions and close the doors of his facility for good. As part of the plan, HSI secured an agreement with him to stop raising dogs for food and move permanently to growing crops as a more humane way to make a living. HSI flew the dogs to San Francisco to be evaluated and treated for medical issues at the San Francisco SPCA. Some of the dogs will be transferred to additional HSI Emergency Placement Partners, includingâEast Bay SPCA, Marin Humane Society and the Sacramento SPCA. All the dogs will be found loving, permanent homes. In this image, Adam Parascandola, Director of Animal Protection and Crisis Response for HSI, holds a dog at the San Francisco airport shortly after his arrival from South Korea. (Sammy Dallal/AP Images for Humane Society International)

IMAGE DISTRIBUTED FOR THE HUMANE SOCIETY OF THE UNITED STATES - Instead of selling commercially-raised puppies, Pets Plus Natural opened a new location in Gibbstown, New Jersey, that offers rescued shelter dogs and puppies for adoption. The dogs will come from various shelters across the mid-Atlantic and Southeastern United States. The store joins more than 2,200 other pet stores around the country that have signed the HSUSâs Puppy Friendly Pet Stores pledge. This is the fifth puppy-friendly location for the Pets Plus Natural pet store chain and the company plans to convert the rest of its stores this year. In this photo, an adoptable shelter puppy kisses a potential new family member at the storeâs grand opening and adoption event on Saturday, March 14th. (Mark Stehle/AP Images for The Humane Society of the United States)

IMAGE DISTRIBUTED FOR HUMANE SOCIETY INTERNATIONAL - Twenty-three dogs rescued by Humane Society International from a dog meat farm in Ilsan, South Korea, arrive in Washington, DC, on Jan. 5 and 6, 2015. HSI worked with the farmer to remove the dogs from miserable conditions and close the doors of his facility for good. As part of the plan, HSI secured an agreement with him to stop raising dogs for food and move permanently to growing crops as a more humane way to make a living. HSI, the international affiliate of The Humane Society of the United States, is working to reduce the dog meat trade in Asia, including South Korea, where dogs are farmed for the industry. HSI plans to work with more South Korean dog meat farmers to help them transition out of this cruel business. In this image, HSI animal rescue responder Masha Kalinina holds a puppy at Dulles International Airport after his long flight from South Korea. (Kevin Wolf/AP Images for Humane Society International)

A Dutch rescue specialist holds a dog after arriving at Eindhoven Air Base, The Netherlands, on May 6, 2015, after assisting with the search for victims of the earthquake that struck Nepal. A unit of 62 people and eight dogs from the Dutch Urban Search and Rescue Team (USAR) was mobilized for the mission. AFP PHOTO / ANP / ROBIN VAN LONKHUIJSEN
--NETHERLANDS OUT-- (Photo credit should read ROBIN VAN LONKHUIJSEN/AFP/Getty Images)

A Border Collie named 'Spring' soars as he attempts to catch a frisbee during a competition at the annual 'Woofstock 90210' dog show in Beverly Hills, California on March 8, 2015. The annual event is held to raise money for animal welfare as well as find homes for rescue dogs. AFP PHOTO/ MARK RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)

Customers Yvette El Sayad (L) and Jasmin Camarena hold rescue dogs inside the temporary Pup Up Dog Cafe during their fund raising event to raise money for a permanent dog cafe in Los Angeles, California on January 23, 2015. The organizers say this will be Americas first dog cafe where owners can bring their dogs to socialize as well as adopt rescue dogs. AFP PHOTO/MARK RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)

ALEXANDRIA, VA - JANUARY 6: Deirdre Hyde with 'Thel', one of about two dozen dogs rescued from South Korea by the Humane Society International group and taken to the Alexandria Animal Welfare League in Alexandria, VA on January 6, 2015. The Washington-based Humane Society International reports that 23 dogs were taken from a meat farmer and 12 were flown to the DC area yesterday. The rest are expected to arrive today, Tuesday. Dog will eventually be placed in approved home thru the Animal Welfare League of Alexandria, the Animal Welfare League of Arlington, the
Fairfax County Animal Shelter, The Loudoun County Animal Services, the City of Manassas Animal Control and Adoption Center and the Washington Animal Rescue League. The farmer raised the dogs for human consumption and accepted compensation to stop farming dogs for meat but will grow bluberries instead. (Photo by Linda Davidson / The Washington Post via Getty Images)

WITH AFP STORY BY ROBERT MACPHERSON: LIFESTYLE-US-SKOREA-ANIMALS
A dog called Snowball rescued from a dog meat farm in South Korea settles into the Animal Welfare League of Alexandria shelter January 5, 2015. A total of 23 dogs destined to be killed for human consumption in South Korea are being imported into the United States this week to be put up for adoption as pets, in the first such dog rescue of its kind. AFP PHOTO / ROBERT MACPHERSON (Photo credit should read Robert MacPherson/AFP/Getty Images)

Kyra was thrown out to die in Northern Greece and rescued. Roosevelt Island in the Manhattan Borough of New York, New York, USA. Manhattan Borough of New York, New York, USA.

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Sarah McLachlan -- she's just like us.

The "Angel" singer confessed that even she can't watch those heart-wrenching ASPCA ads featuring her 1998 hit paired with images of homeless pets.

"A friend of mine was on the board for the ASPCA here and said, 'Hey, would you mind doing a PSA for us?' I was free that week! I was like, 'Yeah, I love animals. Absolutely I'd do it,'" McLachlan told Makersin a recent video blog. "I have to say, it was brutal doing those ads."

The long-running commercials have proven extremely effective over the years. The 47-year-old joked that they "work like a hot damn," revealing that more than $30 million has been generated for the ASPCA as a result.

"Obviously the mix of the music and my sad face," she explained. "But I can't watch them. It kills me!"

But clearly there are plenty of people who do watch them!

"I got a whole new audience out of it," she said. "I swear I'd be at Target in Missouri at 10 o'clock at night getting off the tour bus and I'd be going down the aisle and these two little old ladies would be like, 'Are you that dog lady? I love that song!' Daily. Daily this would happen."

Fellow animal activist Hilary Swank recently spoke with ET about her passion for saving animals at Fox's All-Star Dog Rescue Celebration (she's an executive producer of the program) -- and had an adorable moment with a puppy amid the interview. See it below!